NEMA Standards: Ratings & Compliance

NEMA Standard

A NEMA standard is a set of guidelines established by the National Electrical Manufacturers Association (NEMA) for the design, performance, safety and specifications of electrical equipment & components, such as NEMA enclosures (or) motor frame sizes.

These standards increase safety, product compatibility, and communication between companies & users by establishing a standardized set of requirements for the North American electrical industry.

The NEMA standard has created standard motor designs such as NEMA Design A, B, C & D - which define motor torque characteristics based on intended applications and performance criteria.

Each NEMA design designation features a unique speed-torque curve that depicts the relationship between motor speed & torque utilization under different load circumstances.

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